201133243 has 2 divisors, whose sum is σ = 201133244. Its totient is φ = 201133242.

The previous prime is 201133217. The next prime is 201133271. The reversal of 201133243 is 342331102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201133243 - 2²¹ = 199036091 is a prime.

It is equal to p_11138320 and since 201133243 and 11138320 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201133243.

It is not a weakly prime, because it can be changed into another prime (201130243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100566621 + 100566622.

It is an arithmetic number, because the mean of its divisors is an integer number (100566622).

Almost surely, 2^201133243 is an apocalyptic number.

201133243 is a deficient number, since it is larger than the sum of its proper divisors (1).

201133243 is an equidigital number, since it uses as much as digits as its factorization.

201133243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 201133243 is about 14182.1452185486. The cubic root of 201133243 is about 585.9060088742.

Adding to 201133243 its reverse (342331102), we get a palindrome (543464345).

The spelling of 201133243 in words is "two hundred one million, one hundred thirty-three thousand, two hundred forty-three".